You're the second person saying this and I can only quote myself here:
You can simply save the files as IT files in OpenMPT – load the file and hit the save button, no additional work is necessary. IT files can be played with many popular module players, for example XMPlay. Another solution is using foobar2k with the foo_dumb plugin, which has support for both formats - but that only works if you want to use fb2k of course.